Home / 344,945.18-517,480.45-142,541.78

Finding the Fourth Proportional to 344,945.18, 517,480.45 and 142,541.78

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Solution

The fourth proportional to 344,945.18, 517,480.45 and 142,541.78 is: 213,838.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,945.18 : 517,480.45 = 142,541.78 : x
  2. Step 2: Convert to fraction form
    344,945.18/517,480.45 = 142,541.78/x
  3. Step 3: Cross multiply
    344,945.18x = 517,480.45 × 142,541.78
  4. Step 4: Simplify right side
    344,945.18x = 73,762,581,514.44
  5. Step 5: Solve for x
    x = 73,762,581,514.44/344,945.18
  6. Step 6: Final answer
    x = 213,838.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.